I've been looking at the Edelbrock Performer intake manifold for my 69 which has a stock GM dual plane manifold on it now. Besides a "cooler" air charge what are the benefits of this manifold? Performance wise is it worth it? I don't think I can use the Edelbrock air gap manifold because of the cowl induction set up and clearance issues. As always thanks guys !!!

Put a regular rpm intake on it - performance difference will be huge from a stock gm intake.

Here is the scoop on your stock Q-Jet carb. and intake!

It is about the best there is up to like 34 to 3600 rpm and then it will still hold on to above 5500 rpm w/ the stock, -929cam!!

I'd opt for just an E-brock RPM if height is an issue and install a TUNED, 3310-2 Holley 750 vacuum secondary carb along with a CC 270 Magnum or and Isky 270 Mega or onna UDHarold's cams along w/ 1.625" dia., 4-tube, long headers and go!!

Note!! Nothing fancy here at all, imho..

But it will pick up a BUNCH!!

And I said RPM b/c I think it is the same height as the Performer...

pdq67

I've been looking at the Edelbrock Performer intake manifold for my 69 which has a stock GM dual plane manifold on it now. Besides a "cooler" air charge what are the benefits of this manifold? Performance wise is it worth it? I don't think I can use the Edelbrock air gap manifold because of the cowl induction set up and clearance issues. As always thanks guys !!!


The Edelbrock Performer is basically a stock replacement for your original, cast iron GM manifold. The Edelbrock Performer will accept either a square or spread bore carb so you will be able to use your stock Quadrajet carb along with your divorced choke set up.....The rpm range for the Performer is idle to 5500 rpm.....The Performer is not a high rise so it would be ideal for your cowl induction set up....The only other benefits are the lighter weight plus you'll be able to bolt your accessories to it just like your stock manifold.....Even though it's not exactly the best performance manifold, it is well worth it!:yes:

Find a way to make a perf rpm fit, it's been done, and it's worth it.

I run an RPM air gap with a flat hood and drop base cleaner...

Here is the scoop on your stock Q-Jet carb. and intake!

It is about the best there is up to like 34 to 3600 rpm and then it will still hold on to above 5500 rpm w/ the stock, -929cam!!

I'd opt for just an E-brock RPM if height is an issue and install a TUNED, 3310-2 Holley 750 vacuum secondary carb along with a CC 270 Magnum or and Isky 270 Mega or onna UDHarold's cams along w/ 1.625" dia., 4-tube, long headers and go!!

Note!! Nothing fancy here at all, imho..

But it will pick up a BUNCH!!

And I said RPM b/c I think it is the same height as the Performer...

pdq67

Would it be worth it to just replace the intake manifold then? I will probably get around to doing carb, cam and headers but it will have to wait until I can afford it all at the sametime.

i switched from orignal stock GM intake to edelbrock performer intake and matching carb...it runs great and rock solid throttle response..well worth it....

The RPM is not drilled for both type of carbs. It also is taller then the performer. The performer is not real tall, but it is drilled for a Quadrajet and a Square bore carb.

The RPM is not drilled for both type of carbs.

You can get the 7104 (RPM Q-jet) if you want the stock carb.

Here's my question: Any REAL advantage to an RPM intake on a stock cam engine with 4800 rpm peak hp? I would think the RPM would not show much improvement over the Performer, until the tach swings above 4500 rpm. Anyone have any comments?

I use the 7501 air gap with 3310 , low profile air cleaner base and rubber seal , with cowl hood.

I had a Performer #2101 on a 320 h.p. 350.
Great throttle response, good power to 5500.
No clearance issues, but I used a drop base air cleaner. Could prob have used the normal flat base though, on a flat/non SS/Cowl hood. But woulda been close.
I'd use another one if the situation comes up again.

You guys bring up an issue I had not considered. I was going to bolt on the Performer RPM Air Gap on my 69 coupe. It has the cowl induction hood, but none of the cowl induction parts yet. If I use the Air gap manifold,
1) Will the air cleaner and carb fit in that hood opening, and
2) If I add all the cowl induction parts, will the air cleaner fit?
Thanks guys
rj

OK!

I won't bother w/ just an intake change b/c you won't pick up hardly any at all, imho!!

Sure, throttle response will pick up some in the higher rpm's, but to me NOT enough to worry about the cost diff. until you include ALL the parts to the engine combination I mentioned earlier.

As always, jmho!

And I ran my stock 350SS's Q-Jet intake system on my old junk301 fine up to 7500 rpm as well as I have a, new back then, E-brock 2101 Performer and a Q-Jet off I think a 403 Olds on my 406 and it did fine up to 6,000 rpm for me!

pdq67

the Performer will work good on a mild engine, but if you want to have room to grow, then get the RPM q jet intake for it. you will be able to use your stock carb on it, but i don't think it has the proper hookups for the heat operated choke like the Performer does.
in 95% of all street engines, tho, the good old trusty 2101 is the way to go. paint it orange and hook everything up like stock, and no one but you needs to know it's there.

the Performer will work good on a mild engine, but if you want to have room to grow, then get the RPM q jet intake for it. you will be able to use your stock carb on it, but i don't think it has the proper hookups for the heat operated choke like the Performer does.
in 95% of all street engines, tho, the good old trusty 2101 is the way to go. paint it orange and hook everything up like stock, and no one but you needs to know it's there.

I think I've decided to get the 7104 Performer RPM for the Q-Jet. The only question I have about it is will it accept an Edelbrock or Holley carb if I decide to go that route later on down the road?

RPM Q-jet is a dual pattern, and accepts both a holley and Q-jet.

O.K., sorry for any missinformation I may have given.

Part # 2101 Edelbrock Performer manifold. Drilled for square and spreadbore carbs. Good to 5500 RPM. # 7101 Performer RPM - square bore carbs only. Good to 6500 RPM. # 7104 Q-jet Performer RPM - square bore AND Spreadbore carbs. Good to 6500 RPM.

Why did they even make the 7101 ?

[quote=
Why did they even make the 7101 ?[/quote]

for the same reason GM makes a 7 3/8" 10bolt, 7 1/2" 10bolt, 7 5/8" 10bolt, 8 1/2" 10bolt, 8.6" 10bolt.................and so on:clonk:

Because they like to waste $, instead of just making a good strong 8.5" or bigger rear end stick it in everything they make.

B/c back then it competed head to head against both the Holley 300-36 and the Weiand Stealth!

And I figure to this day the old 300-36 is a very good intake on say 292" to 377" SB's as is the Stealth on say 355" to 412" SB's!! Not to say that they won't overlap up or down!!!

pdq67